Heating apparatus



July 4, 1933. M. M. suPPEs HEATING APPARATUS Filed Nov. 13, 1930 3 sheets-sheet 1 Figa-'1. 3+

nventoz 777446 77?. SLL/MM 3513, @bho/014W HEATING APPARATUS Filed Nov. 13, 1930 3 Sheets-Sheet 2 July 4, 1933. M. M. sUPP-s 1,916,644 HEATING APPARATUS Filed Nov. 13, 1930 3 Sheets-Sheet 3 l 7% lNvENToR BdTToRNEY W W a/7&4

Patented July 4, 1933 UNITED kSTATES ELYRIA, vorrido, ASSIGNORTOTHE rox FURNAOE COMPANY, F

ELYRIA, orrro, AA CORPORATION OP OHIO MAX M. sUPPEs, OP

PATENT OFFICE:

HEATING APPARATUS Appiicauon inea. November 13, '19am-.serialize 495,411.

My invention relatesv to new and useful improvements inl heating apparatus, and more particularly to an air heating furnace of the type employed to heat fairtoj be supplied to the rooms ofa dwelling, or the like.v

An Object of my invention is to provide a furnace in which the furnace chamber is sealed with respect to the air` heatingv space so as to prevent any passage', of gases fromv the furnace chamber into the air 'heating space. A

Another object is to provide a furnace in which leakage of gases, or the like, from the furnace chamber will be visible sothat the leak may be readily detected and sealed. The invention consists inv the improved construction and combination of parts, to be more fully described hereinafter, andz the novelty ofV which ,will be particularlyy pointedk out and distinctly-claimed. 1 In the accompanying drawings, tobe taken as 'a' part of this specification, I havefully and clearly illustrated'a. preferred embodilv ment of my inventiomi-n whichdra'wings- Figure 1 isa-view in "frontelevation of a vfurnace embodying/'my invention, but-hav# ing the top of thejacket removed, n f' Fig. 2 is a side view, in perspective', ofthe furnace with the jacket removed,l A Y Fig. 3 is a viewv in side elevation, andpartly in vertical section, on the line 3-3 of Fig. 1; Fig. 4 isa topy plan view of the furnace casing with partsv broken awa-ytoY show the construct-ion, and` y' i line 5 5 of Fig. 1.- Referring tothe drawings byfcharacters of reference, l designates a furnace casing comprising a drum member2 and a pouch 3, which are preferably of sheet metal, suchl Aas steel.V The .drumrmember 2 encloses the combustion chamber 4, the fire-pot 5'and the ash-pit 6, and has an upper. portion'or head memberv? and a lower portion or body `member 8 which are preferably substantially cylindrical, thevhead member 7 having a top wall V9 and a depending cylindrical wall 10 which overlaps the top edge of the bodymem.-

ber 8,'.and is sealed thereto, preferablyby a welded joint.;y .Adjacent the lower, front edge F ig. 5 is a: detail lview in section the. p

l f floor ofthe ash-pit and ash-pit extension, and

of the wall 10 is a forwardlyextending pori tion' or platemember 11 Vwhich is preferablyy p I inclined slightly downward, and which forms the top wall yof the pouch 3. The side edges of'themember 11 diverge-forwardly and have depending flanges 12, 13, which at their rear ends'merge into the wall 10 and which over'- y lap and are sealed, preferably by a welded r`joint, to the top edges of side wing or wall members 14, 15, respectively, which extend forwardly in diverging relation from the body member 8, and which form the side walls vof the pouch-3. 'The head member .7 vand member 11 with flanges 12, 13, are preferably formed from a single. blank ofk sheet metal. The body member Sand members 14, 15 are also 1preferably formed from a single blank lof'sheet metal. The members V14, 15

extend toV the'bottom'of the 'body member 8A and form the side walls of the fuelV charging throat 16-and of theash-pit extension 17. "The members 11,` 14 and` 15 terminate forwardly in asubstantially common vertical plane and have rigidly secured and sealed theretml-preferably by welding, a frame 18 having sidejm'embers 19,20 and a top cross member 21. VThe members 14, 15 join the frame side members 19, 20, respectively, inf termediate theirA sidev edges, and member 11 joins frame top member 21 intermediate its top and-bottom edges, Vso thatthe -pouch 3 `has along its side and top front edges a laterally, inward extending flange 22 and a laterally, outward extending flange 23. The casing ljhas a bottom wall 24 forming the having its periphery-sealediand rigidly secured, as `by welding, to the body member 8 and the wing members 14, 15, and -terminatf ing at its front edgersubstantially'in the plane of the front face of frame 18. The i body member 8 has an open front defined by the portion111, members-14, 15, and wall 24.

Closin'gthe front Vof the casing land body 'memberS is a front furnace wall 25, preferably Vof cast metal, and having upper `and lowerplate members 26,27, which are oined and sealed together lalong a substantially horizontal line. The upper plate member 26,

-at its bottom edge, voverlaps the front top "are clamped together and upon the packing material by nuts and bolts 3G passed through the members below the recess 29. YThe front n wall 25 has in its rear face and Yadjacent its side and top edges a continuous channel or edges .ofthe member 46.

recess 31 which overlies the flange 22, and in which is positioned ointsealing material 32, such as asbestos rope packing, orthe like, see Fig. 5. The wall 25 is rigidly secured to the casing 1 by nuts and bolts 33 passed through the edges of members 26, 27 outside of the recess 3l and through the flange 22. Through the wall members V26,v 27 are iredoor and ash-pit doorv openings 34, 35, re-A spectively, the openingv 34 registering with the fuel charging throat 16, which has a bot' tom wall formed by a plate. member 36 bridging the space between the wall 25 and the fire-pot 5; lWithin the casing 1 is a grate member 37 positioned at the bottom of the lire-pot 5, .and which may be of any well known'construction. ln the rear wall of the combustion chamber 4 is an opening in which is rigidly secured and sealed, as by welding, an outlet iiue 38 for the products of combustion, and which connects, preferably by a welded joint, into a sheet metalY radiator 39, also preferably having welded joints.r Secured tothe side frame members 19, 20V are corner-posts 40, 41 having bolts 42 eXtending. through'r the flange 23, with the inside edges of the Vposts spaced fiom the side edges of the Wall 25, as at 43, to form vertical channels. j.

r-The furnace casing 1 and radiator 39 comprise a heating unit which is enclosed within a jacket or outer casing44, which is spaced from the unit to provide an air heating chamber. Thejacket 44 seats on a base ring 45v which terminates at the corner posts 40, 41, and has a front opening, the upper part of which is'close'd` by a front jacket-member 46- Which extends laterally to the outside edges of and seats upon the corner posts 40, 41. The side edges of thel jacket at its front opening Aare bolted, as at 47, or otherwise secured to the'corner posts and to the side The lower edge of the member 46 which is preferably of cast Vmetal to support a humidifier pan 48, overlaps the frame cross member 21 in Avertically spaced relation to the top edge of the wall member 26 to form a continuation of the channels 43, as at43, and is secured by bolts 49, or the like, to the flange 23. The member 46 may be sealedto the Vframe 18 by vpacking material positioned in a recess 50 formed in the rear face of member 46 at its lower edge and clamped against frame .18 by the bolts 49. The jacket is provided with apertures for the passage of the Vsmoke, outlet pipes 51, 52, which lead fromthe radiator 39, the pipes preferablyv being welded to the radiator.

It will thus be seen that due to the joints of the furnace casing land the radiator 39 which are within the jacket 44 being welded, there can be no leakage from the veasing into the air heating space within the jacket.

leakage from the cas-ing 1 must pass into the channel 43, 43a, the leak may be readily detected and keasily lsealed by merely loosening certain of the bolts 33, inserting cement, and then tightening the' bolts. x Y i lhat Lelaim and desire to secure by Letters Paten-tof the United States is:-

1'.: Ahot air furnace, comprising apcasing having a front opening, a vframe sealed to said casing around said opening, a front furnace wall rigidly secured at its top and side edges .to said frame, and a jacket enclosing said casingfand'securedv to said frame in Yspacedrelation to said wall whereby the joint between said wall and said frame is out of communication with the space within said jacket. j j Y.

2.fA'hot air furnace, comprising a casing having a front opening, a frame sealed to said casing around said opening, a front furnace Wall overlying the front face of and rigi idly secured at its topf and side edges to said frame, and a jacket enclosing said casing and secured to 'the' front face of said frame in spaced relation to said wall whereby the joint between said Wall andsaid frame -is out of i with thehspace within Y said communication jacket.v i

3. A hot air furnace,comprisinga casing having a front opening, a frame sealed to said casing around said opening, a

-front furnace wall rigidly secured at its top and side edges to said frame, corner posts secured to the sides of said frame in spaced relation tothe side edges of said l u u I Wall, and a jacket enclosing said casing and having aVV front opening, said jacket being secured at the sides of its opening to said posts and being secured at the top of its opening to said frame in spaced relation to said wall. 4. A hotI air furnace comprising a casing having an ash-pit and a fuel charging throat, said casing having forwardly extending side wall members extending from the `bottom of vthefash-pit to the top ofthe fuel charging throat and having adjacent its upper end a fito secured and Vsealed along its side and top Y edges to said wall members and'said'plate member,v and a jacket enclosing said casing and secured to said Wall members and said plate member in spaced relation to said front furnace wall.

5. A hot air furnace coinprising a casing having an ashpit and a fuelV charging throat, said casing having forwardly extending side Wall members extending from the bottom of the ash-pit to the top of the fuel charging throat and having adjacent its upper end a plate member extending between and joined to said wall members, a'frame on the front edges of saidl wall members and Said plate member, a. Vfront furnace wall secured and sealed along its side and top edges to said frame, and a jacket enclosing said casing and securedto said frame in spaced relationv toV said front furnace wall. l .c

6. A hot air furnace comprising a casing `having an ash-pit and a fuel chargingthroat,

said casing having forwardlyextending side wall members extending from the bottom of the ash-pit'to the top of the fuel charging throat and having adjacent its upper end al of said'furnace wall, and a wall secured to said frame plateY member extending between and-joined n to said wall members, a frame on the front edges of said wall members and said plate member, a front furnace Wall secured and sealed along its side and top edges to said frame, corner postsA secured to the sides of said frame in spaced relation to the side edges jacket enclosing said casing and secured to said posts.

7. A'hot air furnace comprising a casing having an ash-pit and a fuel charging throat, saidl casing having Vforwardly extending side wall members extending from the bottom of the ash-pit to the top of the fuel charging throat and having 'adjacent its upper end i a plate member extending between and joined at its side edges to said Wall members, a. frame on the front edges of said Wall members and said plate member,.a front furnace and having a recess in its rear face extending along its side and top edges and closed by said frame, packing material in said recess to seal the joint, and a jacket enclosing said `casing and se cured to said frame.

In testimony whereof I have hereunto subscribed my name this 4th day of Nov., 1930.

, MAX M. SUPPES. 

